<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>Vue 测试实例 - 菜鸟教程(runoob.com)</title>
    <script src="https://cdn.staticfile.org/vue/2.2.2/vue.min.js"></script>
</head>
<body>
<div id="components-demo3" class="demo">
    <button-counter2></button-counter2>
    <button-counter2></button-counter2>
    <button-counter2></button-counter2>
</div>

<script>
    var buttonCounter2Data = {
        count: 0
    }
    Vue.component('button-counter2', {
        /*
        data: function () {
            // data 选项是一个函数，组件不相互影响
            return {
                count: 0
            }
        },
        */
        data: function () {
            // data 选项是一个对象，会影响到其他实例
            return buttonCounter2Data
        },
        template: '<button v-on:click="count++">点击了 {{ count }} 次。</button>'
    })
    new Vue({ el: '#components-demo3' })
</script>
</body>
</html>